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題 名 | Isolation and Characterization of New Sporamin Gene Members from Sweet Potato (Ipomoea Batatas Lam.)=甘藷中Sporamin基因群的選殖及特性研究 |
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作 者 | 陳仁治; 陳益明; 葉開溫; | 書刊名 | Taiwania |
卷 期 | 42:1 1997.03[民86.03] |
頁 次 | 頁34-42 |
分類號 | 434.313 |
關鍵詞 | 多基因型; Sporamin基因群; 貯藏性蛋白質; 甘薯; 3'-尾終端不轉譯區(3'-UTR); Multigene family; Sporamin; Storage protein; Sweet potato; 3'-untranslation region (3'-UTR); |
語 文 | 英文(English) |
DOI | 10.6165/tai.1997.42.34 |
中文摘要 | 本文中報告了四個Sporamin cDNA基因,其中有二個是全長的基因,另二個則不完整;此四個cDNA基因其序列與以往發表的皆不盡相同,但相似度則達90% 以上;根據Gene Bank 的資料分析,四者皆屬Sporamin A亞群分子;從南方雜合的資料顯示,其含有相當多的子基因,北方轉印資料顯示,此基因在葉子部不表現,在莖部則微量存在,然而在塊根中則大量表現,故此基因被推論為扮演甘藷塊根中貯藏性蛋白質的功能。 |
英文摘要 | Two full-length and two partial cDNA s encoding sporamin A have been isolated from sweet potato tuberous roots. Sequence comparisons show that they are very similar with 94-98% homology at nucleotide level, and 80-88% at protein level. All four cDNAs possess multiple alternate polyadenylation signals in the 3' untraslated region (3'-UTR). Genomic Southern blot analysis indicates the presence of a sporamin multigene family in sweet potato. High levels of sporamin mRNAs were detected in developing tuberous roots, but they disappeared at the sprout-germinating stage. Differential expression of these genes was obvious as their mRNAs were present specifically in developing roots, rarely in stems and not in levaves. |
本系統中英文摘要資訊取自各篇刊載內容。